Transcript for Soldier's Alleged Rampage in Afghanistan Leads to Violence

Violent fallout from the massacre of sixteen Afghan civilians by an American soldier today. Column on militants opened fire on high ranking Afghani government officials visiting the site of the massacre. The violence now threatens to plunge the already very delegate to power in Afghanistan into. Chaos ABC's Martha Raddatz joins us now with the very latest good morning to you Martha. Good morning Josh the US has been bracing for reaction to the killings and this morning it came in a violent outburst. In the very village where the massacre took place. Can hear the gunfire. From all signs Afghan officials including two Brothers of Afghan President Hamid Karzai -- inside a mosque offering. Since they were able to escape unharmed. While in eastern Afghanistan hundreds of students gathered to protest the killings. Meanwhile in Washington State. The family the 38 year old staff sergeant accused in the murders has been moved to the secure army base Lewis McCourt for their own protection. ABC news has learned the staff sergeant had marital problems it's at least 2010. Tied in part sources say -- was military deployments that trained sniper had three deployments to Iraq. It was in 2010 that he rolled over in a vehicle -- suffered a mild traumatic brain injury. But just over a year later he was back in combat this latest time in -- Afghanistan would cause -- -- to snap. That'll need to be determined in in the days and weeks to come but we certainly know that conditions. Constant combat could have had an effect. Meanwhile President Obama is working to calm Afghan tensions. It is still important for us to make sure that as we transition there and lead. We don't rush for the -- The sergeant has been provided a warrior while he awaits murder charges but he is providing little information to investigators.

This transcript has been automatically generated and may not be 100% accurate.

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